Liverpool manager Jurgen Klopp said that captain Jordan Henderson's ankle injury is "serious enough" after the Reds progressed to the Champions League quarter-final with a 3-1 win at Bayern Munich.

Henderson suffered an early setback before Liverpool took the lead in their Champions League last-16 showdown at Bayern, as he hobbled off through injury.

Henderson appeared to land awkwardly after an aerial challenge with James Rodriguez and received treatment to his left ankle.

Although the England international tried to continue he was forced to make way for Fabinho during the 13th minute.

"It's a big night with a little shadow that is Hendo's twisted ankle," Klopp said in his post-game press conference.

"We have to see. It looks serious enough, and when you have to change in the middle of the park it’s not ideal.

"That's always a bad sign for a game, when you have to change early. We trained with him there in that position - we wanted to, not to rest Fabinho, but we wanted to bring in fresh legs and Hendo had fresh legs but unfortunately that didn't help with the ankle."